Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammal
- Order
- Carnivora
- Family
- Phocidae
- Genus
- Pusa
- Species
- Pusa hispida
Habitat
The Ladoga seal is endemic to Lake Ladoga in northwestern Russia, inhabiting freshwater lakes with seasonal ice cover. They prefer shallow coastal areas for hauling out and breeding, and deeper waters for foraging. This species avoids fast-flowing rivers and is restricted to this single lake system.
Diet
Ladoga seals primarily eat fish such as smelt, perch, and vendace, along with invertebrates like crustaceans and mollusks. They hunt by diving to depths of up to 100 meters, using their sensitive whiskers to detect prey in murky water, and typically feed during early morning and late evening. Their diet shifts seasonally based on fish availability in the lake.
Behavior
Ladoga seals are mostly solitary but form loose groups on ice floes during breeding season. They are agile swimmers, spending much of their time underwater and hauling out on rocks or ice to rest. These seals exhibit territorial behavior, especially males defending breeding sites, and are active year-round with peaks in activity during dawn and dusk.
Conservation Status
The IUCN classifies the Ladoga seal as Endangered, with a decreasing population trend due to threats like habitat loss from pollution and climate change. Major risks include reduced ice cover for breeding and incidental capture in fishing nets.